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Overview
Summer pruning wisteria encourages the development of short-flowering spurs that will carry the long racemes of bloom in spring. The long vigorous shoots are cut back to a couple of buds from the base of the current season's growth. During initial training of young wisteria plants, select a few strong shoots to tie into wires or trellis. Once you have created these, you can prune any sideshoots back to this framework.
Do it:
late-June - mid-August
At its best:
April - May
Takes just:
1 hour (depending on size of plant)
How to do it
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Use secateurs to cut back all the long shoots that have been produced during the late spring and early summer. Make the cut just beyond the second or third bud from the base.
"Make sure that your secateurs are sharp when cutting back the long shoots of climbers as it's easy to crush or tear the stems, which may lead to die-back."
"Green, leafy summer prunings from wisteria can be added to the compost heap where they'll rot down quickly."
